Train to Busan is a 2016 South Korean action horror film directed by Yeon Sang-ho, written by Park Joo-suk, and starring Gong Yoo, Jung Yu-mi, Ma Dong-seok, Kim Su-an, Choi Woo-shik, Ahn So-hee, and Kim Eui-sung. The film mostly takes place on a KTX from Seoul to Busan as a zombie apocalypse suddenly breaks out in the country and threatens the safety of the passengers.

Plot

Fund manager Seok-woo is a cynical workaholic and divorced father. His estranged daughter Su-an wishes to spend her birthday with her mother Na-young in Busan. Seok-woo sees a video of Su-an attempting to sing "" at her singing recital and succumbing to stage fright as a result of his absence. Overcome with guilt, he decides to grant Su-an's birthday wish. The next day, they board the KTX 101 at Seoul Station, bound for Busan. Other passengers include blue-collar worker Sang-hwa and his pregnant wife Seong-kyeong; COO Yon-suk; a high school baseball team including player Yong-guk and his cheerleader girlfriend Jin-hee; elderly sisters In-gil and Jong-gil; and a traumatized homeless stowaway hiding in the bathroom. Just before departure, an ill, bitten woman boards unnoticed, soon turning into a zombie, biting and infecting a train attendant, sparking a rapid outbreak on the train.